diff --git a/none_demo/plugins/repeater.py b/none_demo/plugins/repeater.py
new file mode 100644
index 00000000..a34e8852
--- /dev/null
+++ b/none_demo/plugins/repeater.py
@@ -0,0 +1,21 @@
+from none import (
+    on_natural_language, NLPSession, NLPResult
+)
+
+_last_session = None
+
+
+@on_natural_language(only_to_me=False)
+async def _(session: NLPSession):
+    if session.ctx.get('group_id') != 672076603:
+        return None
+
+    global _last_session
+    result = None
+    if _last_session and \
+            _last_session.ctx['user_id'] != session.ctx['user_id'] and \
+            _last_session.msg == session.msg:
+        result = NLPResult(61.0, 'echo', {'message': _last_session.msg})
+        _last_session = None
+    _last_session = session
+    return result